Mary, Connor E. (2012). “A Thematic Approach to United States History—Social Studies School Service.” A Thematic Approach to United States History—Social Studies School Service. http://socialstudies.com/c/@0/Pages/connorintro.html.
McNamara, John. “Essential Questions in Teaching American History.” The Gilder Lehrman Institute of American History. https://www.gilderlehrman.org/.
“National Woman’s History Museum.” Educational Resources. http://www.nwhm.org/education-resources/.
National Council for the Social Studies (2012). Social Studies—Preparing Students for College, Career, and Civic Life. www.socialstudies.org.